Agatha Christie is a writer well-known for her crime stories...?

Question

She was in a country with her husband who was digging for antiquities and on one occasion when her husband was confused while digging she said something that immediately shed light on the situation:

1. What is that country?
2. What did she refer to by her saying?

Mr. Monc

The thing she refered to is a famous story in the Bible.

Monc, you are on the right track, you should get it this time.

Answer 1

we need some more details. He was a famous archeologist and dug in lots of places. Ur was a famous place where she dug.